/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Columns/TypedElementViewportColumns.h
Column to hold the color that the object is outlined with when selected in the viewport
struct FTypedElementViewportColorColumn : public [FTypedElementDataStorageColumn](API\Runtime\TypedElementFramework\Elements\Interfaces\FTypedElementDat-)
uint8
SelectionOutlineColorIndex